Buggy code:
@ final Long appTableId , final JsonCommand command ) { } private boolean isRegisteredDataTable ( final String name ) { } private void assertDataTableExists ( final String datatableName ) { } private boolean isDataTableSystemDefined ( final String name ) { } private void validateDatatableName ( final String name ) { } private String datatableColumnNameToCodeValueName ( final String columnName , final String code ) { } private void throwExceptionIfValidationWarningsExist ( final List < ApiParameterError > dataValidationErrors ) { } private void parseDatatableColumnObjectForCreate ( final JsonObject column , StringBuilder sqlBuilder , final StringBuilder constrainBuilder , final String dataTableNameAlias , final Map < String , Long > codeMappings , final boolean isConstraintApproach ) { } @ Transactional @ Override public CommandProcessingResult createDatatable ( final JsonCommand command ) { } private void parseDatatableColumnForUpdate ( final JsonObject column , final Map < String , ResultsetColumnHeaderData > mapColumnNameDefinition , StringBuilder sqlBuilder , final String datatableName , final StringBuilder constrainBuilder , final Map < String , Long > codeMappings , final List < String > removeMappings , final boolean isConstraintApproach ) { } private int getCodeIdForColumn ( final String dataTableNameAlias , final String name ) { } private void parseDatatableColumnForAdd ( final JsonObject column , StringBuilder sqlBuilder , final String dataTableNameAlias , final StringBuilder constrainBuilder , final Map < String , Long > codeMappings , final boolean isConstraintApproach ) { } private void parseDatatableColumnForDrop ( final JsonObject column , StringBuilder sqlBuilder , final String datatableName , final StringBuilder constrainBuilder , final List < String > codeMappings ) { } private void registerColumnCodeMapping ( final Map < String , Long > codeMappings ) { } private void deleteColumnCodeMapping ( final List < String > columnNames ) { } private void removeNullValuesFromStringColumn ( final String datatableName , final JsonObject column , final Map < String , ResultsetColumnHeaderData > mapColumnNameDefinition ) { } @ Transactional @ Override public void updateDatatable ( final String datatableName , final JsonCommand command ) { } @ Transactional @ Override public void deleteDatatable ( final String datatableName ) { } @ Transactional @ Override public CommandProcessingResult updateDatatableEntryOneToOne ( final String dataTableName , final Long appTableId , final JsonCommand command ) { } @ Transactional @ Override public CommandProcessingResult updateDatatableEntryOneToMany ( final String dataTableName , final Long appTableId , final Long datatableId , final JsonCommand command ) { } private CommandProcessingResult updateDatatableEntry ( final String dataTableName , final Long appTableId , final Long datatableId , final JsonCommand command ) { } @ Transactional @ Override public CommandProcessingResult deleteDatatableEntries ( final String dataTableName , final Long appTableId ) { } @ Transactional @ Override public CommandProcessingResult deleteDatatableEntry ( final String dataTableName , final Long appTableId , final Long datatableId ) { } @ Override public GenericResultsetData retrieveDataTableGenericResultSet ( final String dataTableName , final Long appTableId , final String order , final Long id ) { } private GenericResultsetData retrieveDataTableGenericResultSetForUpdate ( final String appTable , final String dataTableName , final Long appTableId , final Long id ) { } private CommandProcessingResult checkMainResourceExistsWithinScope ( final String appTable , final Long appTableId ) { } private Long getLongSqlRowSet ( final SqlRowSet rs , final String column ) { } private String dataScopedSQL ( final String appTable , final Long appTableId ) { } private void validateAppTable ( final String appTable ) { } private String mapToActualAppTable ( final String appTable ) { } private List < ResultsetRowData > fillDatatableResultSetDataRows ( final String sql ) { } private String queryForApplicationTableName ( final String datatable ) { } private String getFKField ( final String applicationTableName ) { } private String getAddSql ( final List < ResultsetColumnHeaderData > columnHeaders , final String datatable , final String fkName , final Long appTableId , final Map < String , String > queryParams ) { } public String getAddSqlWithScore ( final List < ResultsetColumnHeaderData > columnHeaders , final String datatable , final String fkName , final Long appTableId , final Map < String , String > queryParams ) { } private String getUpdateSql ( final String datatable , final String keyFieldName , final Long keyFieldValue , final Map < String , Object > changedColumns ) { } private Map < String , Object > getAffectedAndChangedColumns ( final GenericResultsetData grs , final Map < String , String > queryParams , final String fkName ) { } private boolean columnChanged ( final String key , final String keyValue , final String colType , final GenericResultsetData grs ) { } public Map < String , String > getAffectedColumns ( final List < ResultsetColumnHeaderData > columnHeaders , final Map < String , String > queryParams , final String keyFieldName ) { } private String validateColumn ( final ResultsetColumnHeaderData columnHeader , final String pValue , final String dateFormat , final Locale clientApplicationLocale ) { } private String getDeleteEntriesSql ( final String datatable , final String FKField , final Long appTableId ) { } private String getDeleteEntrySql ( final String datatable , final Long datatableId ) { } private boolean notTheSame ( final String currValue , final String pValue , final String colType ) { } private HashMap < String , Object > returnFieldNameAndOrder ( JsonObject column , boolean isConstraintApproach ) { } private void deleteRegisteredTableMetaData ( final String xRegisteredTableName ) { } public Long countDatatableEntries ( final String datatableName , final Long appTableId , String foreignKeyColumn ) { } public List < DatatableCategoryData > retreiveCategories ( ) { final String sql = ( ( ( ( "select<seq2seq4repair_space>code_value<seq2seq4repair_space>,<seq2seq4repair_space>category<seq2seq4repair_space>,<seq2seq4repair_space>application_table_name,<seq2seq4repair_space>registered_table_name,system_defined" + ( ( ( ( ( ( ( ( ( "<seq2seq4repair_space>from<seq2seq4repair_space>m_code<seq2seq4repair_space>mc<seq2seq4repair_space>" + "<seq2seq4repair_space>join<seq2seq4repair_space>m_code_value<seq2seq4repair_space>cv<seq2seq4repair_space>on<seq2seq4repair_space>cv.code_id<seq2seq4repair_space>=<seq2seq4repair_space>mc.id<seq2seq4repair_space>" ) + "<seq2seq4repair_space>left<seq2seq4repair_space>join<seq2seq4repair_space>x_registered_table<seq2seq4repair_space>on<seq2seq4repair_space>x_registered_table.category<seq2seq4repair_space>=<seq2seq4repair_space>cv.id<seq2seq4repair_space>" ) + "<seq2seq4repair_space>where<seq2seq4repair_space>exists" ) + "<seq2seq4repair_space>(select<seq2seq4repair_space>'f'" ) + "<seq2seq4repair_space>from<seq2seq4repair_space>m_appuser_role<seq2seq4repair_space>ur<seq2seq4repair_space>" ) + "<seq2seq4repair_space>join<seq2seq4repair_space>m_role<seq2seq4repair_space>r<seq2seq4repair_space>on<seq2seq4repair_space>r.id<seq2seq4repair_space>=<seq2seq4repair_space>ur.role_id" ) + "<seq2seq4repair_space>left<seq2seq4repair_space>join<seq2seq4repair_space>m_role_permission<seq2seq4repair_space>rp<seq2seq4repair_space>on<seq2seq4repair_space>rp.role_id<seq2seq4repair_space>=<seq2seq4repair_space>r.id" ) + "<seq2seq4repair_space>left<seq2seq4repair_space>join<seq2seq4repair_space>m_permission<seq2seq4repair_space>p<seq2seq4repair_space>on<seq2seq4repair_space>p.id<seq2seq4repair_space>=<seq2seq4repair_space>rp.permission_id" ) + "<seq2seq4repair_space>where<seq2seq4repair_space>ur.appuser_id<seq2seq4repair_space>=<seq2seq4repair_space>" ) ) + ( this . context . authenticatedUser ( ) . getId ( ) ) ) + "<seq2seq4repair_space>and<seq2seq4repair_space>(p.code<seq2seq4repair_space>in<seq2seq4repair_space>('ALL_FUNCTIONS',<seq2seq4repair_space>'ALL_FUNCTIONS_READ')<seq2seq4repair_space>or<seq2seq4repair_space>p.code<seq2seq4repair_space>=<seq2seq4repair_space>concat('READ_',<seq2seq4repair_space>registered_table_name)))<seq2seq4repair_space>" ) + "<seq2seq4repair_space>and<seq2seq4repair_space>mc.code_name='SurveyCategory'" ) + "<seq2seq4repair_space>order<seq2seq4repair_space>by<seq2seq4repair_space>code_value,<seq2seq4repair_space>registered_table_name" ; final SqlRowSet rs = this . jdbcTemplate . queryForRowSet ( sql ) ; final List < DatatableCategoryData > listOfCategoryData = new ArrayList < > ( ) ; final List < Long > ids = new ArrayList < Long > ( ) ; while ( rs . next ( ) ) { final Long categoryId = rs . getLong ( "category" ) ; final String categoryName = rs . getString ( "code_value" ) ; final DatatableCategoryData cat = DatatableCategoryData . datatableCategoryData ( categoryId , categoryName ) ; if ( ! ( ids . contains ( categoryId ) ) ) { listOfCategoryData . add ( cat ) ; ids . add ( categoryId ) ; } } for ( DatatableCategoryData c : listOfCategoryData ) { <START_BUG> rs . first ( ) ; <END_BUG>

Fix:
rs . beforeFirst ( ) ;